The quick method
- Open the free image converter
- Upload your image (JPG, PNG, WebP, GIF, or AVIF)
- Select the output format
- Download the converted file
No account. No upload to external servers. Conversion runs locally in your browser using JavaScript canvas and WebAssembly. Typical conversion time: under 2 seconds for most images.
Format guide: which to use where
| Format | Best for | Avoid for |
|---|---|---|
| JPG / JPEG | Photographs, hero images, backgrounds | Logos, screenshots, anything with transparency |
| PNG | Logos, screenshots, graphics, transparent images | Photographs (files become very large) |
| WebP | Web images — 25–35% smaller than JPG/PNG | Email, older apps, Outlook, some printers |
| AVIF | Modern web — even smaller than WebP | Safari pre-2023, older Android browsers |
| GIF | Short animations, simple graphics | Photos, complex images (256 color limit) |
The most common conversion scenarios
WebP to JPG
Chrome saves right-clicked images as WebP by default. When the file needs to go into an email, Word document, or app that doesn't handle WebP, convert to JPG. Use quality 90%+ to minimize any loss.
PNG to JPG
PNG files of photographs are unnecessarily large. A 4MB PNG photograph might be 300KB as JPG at quality 85 with no visible difference. Convert photographs from PNG to JPG before uploading to websites, e-commerce platforms, or sending via email.
JPG to PNG
When a design needs a transparent background or needs to be placed on a non-white surface. Note: converting a JPG to PNG preserves the JPG's existing compression artifacts — you cannot recover quality lost in the original JPG compression.
JPG/PNG to WebP
For website optimization. WebP files are smaller, reducing page load time and improving Core Web Vitals scores. Most modern CDNs can serve WebP automatically — check your hosting provider before manually converting.
Transparency across formats
Only PNG, WebP, and GIF support transparency. If you convert a transparent PNG to JPG, the transparent areas become white. Always use PNG or WebP as the output format when the image has a transparent background.
Quality and file size
When converting to a lossy format (JPG, WebP lossy), you control the quality/size trade-off with a quality setting. Higher quality = larger file = less visible compression. For web use:
- JPG: quality 80–85% is the sweet spot — invisible quality loss, 60–70% size reduction
- WebP: quality 80% produces even smaller files than JPG at equivalent visual quality
Summary
Convert between any image format free with the free image converter — JPG, PNG, WebP, AVIF, GIF. No upload required. Use WebP for modern web, PNG for transparency and logos, JPG for photographs. When converting from WebP to JPG, set quality to 90%+ to minimize losses.